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Revista Paulista de Pediatria

Print version ISSN 0103-0582


MARCHIORO, Ariella Andrade et al. Eosinophilic count and seropositivity for IgG antibodies to toxocara spp. in children assisted at the public health service. Rev. paul. pediatr. [online]. 2011, vol.29, n.1, pp.80-84. ISSN 0103-0582.

OBJECTIVE: To study the association between the presence of eosinophilia and IgG antibodies to Toxocara spp. in children assisted by the public health service, in the northwestern region of Parana State, in southern Brazil. METHODS: A retrospective study of children aged seven months to 12 years old assisted by the Public Health Service in northwest state of Paraná, Brazil. ELISA test was performed in all children in order to detect IgG antibodies to Toxocara spp. and eosinophil amounts (eosinophilia > 600 cells/mm3). RESULTS: Among 1,199 screened children, 386 (32.2%) had IgG antibodies to Toxocara spp. The seroprevalence of Toxocara spp. and the eosinophilia were more common among children of seven months to five years old. Eosinophilia was observed in 7.8% of seropositive patients to Toxocara spp. CONCLUSIONS: There was a high prevalence of anti-Toxocara spp., mainly in children under five years old. With the exception of some children who had respiratory symptoms and eosinophilia, most of them were asymptomatic and did not present eosinophilia. Eosinophilic count is a secondary laboratory finding in the diagnosis of toxocariasis.

Keywords : toxocariasis [diagnosis]; child; eosinophilia.

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